diff --git a/.drone.yml b/.drone.yml
index 82ae06b..cae36d8 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -14,7 +14,7 @@ pipeline:
             - pip install tox
             - tox -e "${TOXENV}-${DATABASE}"
         volumes:
-            - cache:/root/.cache
+            - /var/lib/cache:/root/.cache
     notify:
         image: drillster/drone-email
         from: drone@datalife.com.es
diff --git a/ir.py b/ir.py
index 58f7793..c0a54f8 100644
--- a/ir.py
+++ b/ir.py
@@ -56,7 +56,7 @@ class Sequence(metaclass=PoolMeta):
                 if sequence.periods:
                     if not date:
                         cls.raise_user_error('missing_date', sequence.rec_name)
-                    pattern = {}
+                    pattern = sequence._get_period_pattern()
                     for period in sequence.periods:
                         if period.match(pattern):
                             return period.get_id(_lock=_lock)
@@ -65,6 +65,9 @@ class Sequence(metaclass=PoolMeta):
                 return super(Sequence, cls).get_id(domain, _lock=_lock)
         return ''
 
+    def _get_period_pattern(self):
+        return {'date': Transaction().context.get('date')}
+
 
 class SequencePeriod(ModelSQL, ModelView, MatchMixin):
     '''Sequence period'''
@@ -84,6 +87,8 @@ class SequencePeriod(ModelSQL, ModelView, MatchMixin):
             })
     number_next = fields.Function(number_next_internal, 'get_number_next',
         'set_number_next')
+    prefix = fields.Char('Prefix')
+    suffix = fields.Char('Suffix')
 
     @staticmethod
     def default_number_next():
@@ -194,9 +199,9 @@ class SequencePeriod(ModelSQL, ModelView, MatchMixin):
                 cursor.execute(*query)
         date = Transaction().context.get('date')
         return '%s%s%s' % (
-            Sequence._process(self.sequence.prefix, date=date),
+            Sequence._process(self.prefix or self.sequence.prefix, date=date),
             self._get_sequence(),
-            Sequence._process(self.sequence.suffix, date=date),
+            Sequence._process(self.suffix or self.sequence.suffix, date=date),
             )
 
     def _get_sequence(self):
@@ -218,11 +223,14 @@ class SequencePeriod(ModelSQL, ModelView, MatchMixin):
         else:
             raise NotImplementedError()
 
-    def match(self, pattern):
-        date = Transaction().context.get('date')
+    def match(self, pattern, match_none=False):
+        pattern = pattern.copy()
+        date = pattern.get('date')
         if not date:
             return False
-        return self.start_date <= date <= self.end_date
+        _match = self.start_date <= date <= self.end_date
+        _ = pattern.pop('date')
+        return _match and super().match(pattern, match_none=match_none)
 
 
 class SequenceStrict(metaclass=PoolMeta):
diff --git a/locale/es.po b/locale/es.po
index cf38779..07ffdea 100644
--- a/locale/es.po
+++ b/locale/es.po
@@ -50,6 +50,14 @@ msgctxt "field:ir.sequence.period,start_date:"
 msgid "Start date"
 msgstr "Fecha inicio"
 
+msgctxt "field:ir.sequence.period,prefix:"
+msgid "Prefix"
+msgstr "Prefijo"
+
+msgctxt "field:ir.sequence.period,suffix:"
+msgid "Suffix"
+msgstr "Sufijo"
+
 msgctxt "field:ir.sequence.period,write_date:"
 msgid "Write Date"
 msgstr "Fecha de modificación"
diff --git a/tests/test_ir_sequence_period.py b/tests/test_ir_sequence_period.py
index 53b193a..86af787 100644
--- a/tests/test_ir_sequence_period.py
+++ b/tests/test_ir_sequence_period.py
@@ -72,8 +72,10 @@ class IrSequencePeriodTestCase(ModuleTestCase):
                         'sequence': sequence.id,
                         'start_date': datetime.date(2019, 1, 1),
                         'end_date': datetime.date(2019, 12, 31),
-                        'number_next': 40}])
-                    self.assertEqual(Sequence.get_id(sequence), '2019/40')
+                        'number_next': 40,
+                        'suffix': '/XX'
+                    }])
+                    self.assertEqual(Sequence.get_id(sequence), '2019/40/XX')
 
 
 def suite():
diff --git a/view/sequence_period_form.xml b/view/sequence_period_form.xml
index 01a5f22..a7a67a2 100644
--- a/view/sequence_period_form.xml
+++ b/view/sequence_period_form.xml
@@ -6,6 +6,10 @@
     <field name="start_date"/>
     <label name="end_date"/>
     <field name="end_date"/>
+    <label name="prefix"/>
+    <field name="prefix"/>
+    <label name="suffix"/>
+    <field name="suffix"/>
     <label name="number_next"/>
     <field name="number_next"/>
     <label name="sequence"/>
diff --git a/view/sequence_period_list.xml b/view/sequence_period_list.xml
index 219170d..3a766db 100644
--- a/view/sequence_period_list.xml
+++ b/view/sequence_period_list.xml
@@ -5,5 +5,7 @@
     <field name="sequence"/>
     <field name="start_date"/>
     <field name="end_date"/>
+    <field name="prefix"/>
+    <field name="suffix"/>
     <field name="number_next"/>
 </tree>
\ No newline at end of file